High-crushing-ratio double-tooth-roller crusher

Abstract

The invention discloses a high-crushing-ratio double-tooth-roller crusher. The high-crushing-ratio double-tooth-roller crusher comprises a crusher shell, a first tooth roller shaft, a second tooth roller shaft, a first coupler, a second coupler, a first speed reducer, a second speed reducer, a first hydraulic coupler, a second hydraulic coupler, a first motor, a second motor, a hydraulic jack, a bolt support, a crushing beam fixing bolt, a crushing beam and lower crushing teeth, wherein a plurality of rows of roller teeth are distributed on the first tooth roller shaft at equal intervals in the axial direction; a plurality of rows of roller teeth are distributed on the second tooth roller shaft at equal intervals in the axial direction; the first tooth roller shaft and the second tooth roller shaft are arranged in the crusher shell in parallel; and the bolt support is located on the hydraulic jack and connected with an end plate of the crushing beam through the crushing beam fixing bolt. The lower crushing teeth are connected to the crushing beam. The high-crushing-ratio double-tooth-roller crusher can crush materials three times, and the crushing ratio is high; the granularity of finished products can be strictly controlled; large materials can be crushed, and the crushing efficiency is high; and falling on the whole tooth roller shafts is uniform, and the crushing capacity is high.

Description

technical field [0001] The technology belongs to mining machinery equipment, and in particular relates to a high crushing ratio double-toothed roller crusher. Background technique [0002] In the fields of industrial production and mining, crushers are widely used. Among them, the double-toothed roller crusher integrates the advantages of roller pressure and impact crusher, has compact structure, high crushing efficiency, and low crushing power consumption. Due to the strong demand, various types of models have emerged on the market, but the crushing principle is roughly the same, that is, two parallel rollers rotate relative to each other. After the material enters the V-shaped gap between the two toothed rollers, it is crushed by the two toothed rollers. Relative extrusion and shearing for crushing. There is a spring device at both ends of the equipment to adjust the pressure between the two rollers, and the gap between the two toothed rollers determines the particle size...

AI Technical Summary

Problems solved by technology

The main defects of this type of machine: (1) The material is only rolled by double rollers at one time, that is, it becomes a finished product, and the crushing ratio is relatively low; (2) Since the toothed rollers will automatically retreat, the particle size of the finished product cannot be strictly controlled; ( 3) The roller teeth are small and numerous, and the impact capacity is weak. The main form of crushing is tearing, which determines that only small pieces of materials can be crushed.

(4) The roller teeth are evenly arranged in a simple straight line. At the same time, the number of stressed roller teeth is small, the crushing efficiency is low, and the material is concentrated at the feed inlet, which causes the middle part of the tooth roller to be easily worn or bent, which affects the life of the equipment.

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